A shock of more than 6 times the cost of transporting oil in the world The American bank Goldman Sachs announced that the cost of transporting a barrel of crude oil in the world markets rose from about $3 to more than $20 in one year; The increase that occurred following the escalation of tensions in the Middle East. The increase in the cost of insurance, the leasing of oil tankers and restrictions on sea routes have increased the cost of supplying oil and can put more pressure on energy importing countries. The continuation of this trend may increase the cost of refining and distribution of petroleum products and lead to an increase in fuel prices and increased inflationary pressures.